Sierra Leone Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Sierra Leone in September.

🔎
Freetown Banana Island

Are you planning a trip a to Sierra Leone in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Sierra Leone in September

September in Sierra Leone generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 28°C (82°F) and nighttime temperatures around 25°C (77°F) in Freetown.

For a closer look at conditions across Sierra Leone, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 504 mm (20 in) in Freetown.

Average sunshine

Most places get a reasonable amount of sunshine. Take Freetown as an example - it receives around 128 hours of sunlight, offering a nice mix of sunny and partly cloudy days. Want to compare this with brighter destinations? Try our weather planner to explore your options.

Explore Sierra Leone by month

Pick a month to see the average temperature, rainfall and sunshine in Sierra Leone — and find the best time to visit. (based on Freetown)

January29°C (84°F) February28°C (82°F) March28°C (82°F) April29°C (84°F) May29°C (84°F) June28°C (82°F) This monthJuly28°C (82°F) August27°C (81°F) September28°C (82°F) October28°C (82°F) November29°C (84°F) December29°C (84°F)
Best Time to Visit Sierra Leone →

Best Places to Visit in Sierra Leone in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Sierra Leone.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Sierra Leone

What is the weather like in September for some of the most popular destinations in Sierra Leone?

Temperature range in Sierra Leone (September)

Precipitation variation in Sierra Leone (September)

Freetown

In September Freetown generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
88 hours
128 hours
188 hours
Monthly rainfall
754 mm (30 in)
504 mm (20 in)
246 mm (9.7 in)
Monthly rainy days
27 days
24 days
21 days
Weather conditions
poor
poor
unpleasant
Climate in Freetown →

Banana Island

In September Banana Island generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
88 hours
128 hours
188 hours
Monthly rainfall
735 mm (29 in)
503 mm (20 in)
256 mm (10 in)
Monthly rainy days
27 days
24 days
21 days
Weather conditions
poor
poor
unpleasant
Climate in Banana Island →

Is your destination not in the list? Have a look at all destinations in Sierra Leone.

In our records: Sierra Leone September extremes

Notable September records observed across cities in Sierra Leone in our climate database (2003 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in Sierra Leone brought 226 mm (8.9 in) in Freetown on September 12, 2016.

Popular cities in September

Day & night temperatures, rainfall and average weather in Sierra Leone in September.

City Weather Day temp Night temp Rainfall
Freetown 28°C (82°F) 25°C (77°F) 504 mm (20 in)
Banana Island 28°C (82°F) 25°C (77°F) 503 mm (20 in)

Sierra Leone weather in September: frequently asked questions

What is the weather like in Sierra Leone in September?

Expect poor weather across Sierra Leone in September. The popular destination of Freetown averages 28°C (82°F) by day and 25°C (77°F) at night during this month.

What is the average temperature in Sierra Leone in September?

In Freetown, the average daytime high in September is 28°C (82°F), while nighttime temperatures drop to around 25°C (77°F).

Does Sierra Leone get a lot of rain in September?

Yes. September brings heavy rainfall to Sierra Leone, with Freetown averaging around 504 mm (20 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Sierra Leone?

In our view, September might not be the best time to travel to Sierra Leone with often poor weather in Freetown.

Generally speaking, the best visiting conditions can be found in January, February, March, April and December offering mostly perfect weather in Freetown. On the other hand, the weather in June, July, August and September tend to be poor.

Interested in more climate information?

We have much more information about the climate in Sierra Leone.

Weather and climate has detailed information for every country in the world. Are you going to Sierra Leone? Get detailed historical weather averages for many cities in Sierra Leone.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.